ReviewAmerican journal of otolaryngology
COVID-19 and anosmia: A review based on up-to-date knowledge.
Review in American journal of otolaryngology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 5 registered trials, which are not on this map. Cited by 189 papers, 18 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Smell in Covid-19 and Efficacy of Nasal Theophylline
Fluvoxamine to Augment Olfactory Recovery For Long COVID-19 Parosmia (FluCOP Trial)
LOng COvid COmorbidities: Evaluation of Andrological, Reproductive and Sexual Functions in Patients Recovered From COVID-19
Smell in COVID-19 and Efficacy of Nasal Theophylline 3
Mindfulness-Based Stress Reduction (MBSR) Versus Lifestyle Intervention for Long-Haul Covid-19 Parosmia (LCP)
Who cites it
189 citing papers in PubMed, 18 syntheses or guidelines pooled it, 421 citations in OpenAlex.
- Effect of glucocorticoids on smell sensation in patients with non-traumatic olfactory disorders: a systematic review and meta-analysis.European journal of clinical pharmacology · 2026Pooled it
- Acute epiglottitis caused by COVID-19: A systematic review.Biomolecules & biomedicine · 2023Pooled it
- Pooled it
- Inhaled corticosteroids' effect on COVID-19 patients: A systematic review and meta-analysis of randomized controlled trials.Canadian journal of respiratory therapy : CJRT = Revue canadienne de la therapie respiratoire : RCTR · 2023Pooled it
- Interventions for the prevention of persistent post-COVID-19 olfactory dysfunction.The Cochrane database of systematic reviews · 2022Pooled it
- Interventions for the treatment of persistent post-COVID-19 olfactory dysfunction.The Cochrane database of systematic reviews · 2022Pooled it
- Efficacy of topical steroids for the treatment of olfactory disorders caused by COVID-19: A systematic review and meta-analysis.Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery · 2022Pooled it
- COVID-19 and Sudden Sensorineural Hearing Loss: A Systematic Review.Frontiers in neurology · 2022Pooled it
- A rapid systematic review of measures to protect older people in long-term care facilities from COVID-19.BMJ open · 2021Pooled it
- The D614G Virus Mutation Enhances Anosmia in COVID-19 Patients: Evidence from a Systematic Review and Meta-analysis of Studies from South Asia.ACS chemical neuroscience · 2021Pooled it
- A case-based systematic review on the SARS-COVID-2-associated cerebrovascular diseases and the possible virus routes of entry.Journal of neurovirology · 2021Pooled it
- Interventions for the treatment of persistent post-COVID-19 olfactory dysfunction.The Cochrane database of systematic reviews · 2021Pooled it
- Interventions for the prevention of persistent post-COVID-19 olfactory dysfunction.The Cochrane database of systematic reviews · 2021Pooled it
- Is loss of smell an early predictor of COVID-19 severity: a systematic review and meta-analysis.Archives of pharmacal research · 2021Pooled it
- COVID-19 as a worldwide selective event and bitter taste receptor polymorphisms: An ecological correlational study.International journal of biological macromolecules · 2021Pooled it
- Management of urticaria in COVID-19 patients: A systematic review.Dermatologic therapy · 2021Pooled it
- Prevalence of Chemosensory Dysfunction in COVID-19 Patients: A Systematic Review and Meta-analysis Reveals Significant Ethnic Differences.ACS chemical neuroscience · 2020Pooled it
- Can SARS-CoV-2 positive pregnant women affect the hearing of their newborns: A systematic review.American journal of otolaryngologyPooled it
- Randomized clinical trial of BCG vaccine in patients with convalescent COVID-19: Clinical evolution, adverse events, and humoral immune response.Journal of internal medicine · 2022Trial
- Efficacy and Safety of Saline Nasal Irrigation Plus Theophylline for Treatment of COVID-19-Related Olfactory Dysfunction: The SCENT2 Phase 2 Randomized Clinical Trial.JAMA otolaryngology-- head & neck surgery · 2022Trial
129 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The pandemic of Coronavirus Disease 2019 (COVID-19) has caused a vast disaster throughout the world. There is increasing evidence that olfactory dysfunction can present in COVID-19 patients. Anosmia can occur alone or can be accompanied by other symptoms of COVID-19, such as a dry cough. However, the pathogenic mechanism of olfactory dysfunction and its clinical characteristics in patients with COVID-19 remains unclear. Multiple cross-sectional studies have demonstrated that the incidence rate of olfactory dysfunction in COVID-19 patients varies from 33.9-68% with female dominance. Anosmia and dysgeusia are often comorbid in COVID-19 patients. Otolaryngologists should be mindful of the symptom of anosmia in outpatients so as not to delay the diagnosis of COVID-19. In this paper, we have reviewed the relevant knowledge based on up-to-date literature.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.